查询词典 wind-driven

Integrated analysis on design theory and control mode of robot manipulators hydraulic driven system at home and abroad have been made in detail, then a new robot manipulators hydraulic driven system based on high-speed on-off valve pilot control is proposed in this paper.

本文在对国内外现有的机械臂液压驱动系统设计理论和控制方式进行了综合分析后，研究了基于高速开关阀先导控制的新型机械臂液压驱动系统。

Main Products Agents have: import gas driven booster pump, liquid-driven booster pump, high pressure valves and pipe fittings, special-purpose processing tool.

主要代理产品有：进口气体驱动增压泵，液体驱动增压泵，高压阀门与管件，专用加工工具。

For the first time, a screw pile and pile driver system for preventing flood and rushing to deal with an emergency was manufactured. The screw piles of the system is different from screw drills used to sap, and it doesn't push soils out. Analyses, including the screw pile's structural strength analysis and the screw blade's welding analysis, were done by ANSYS, which showed that the screw pile's structural strength is enough and that the distort of the screw blade is small. Testing on the screw pile and pile driver system showed that the system performed stably and could meet the need of preventing flood and rushing to deal with an emergency. A mechanics model of interaction of a screw pile and soil was built, and expressions of torque of screw pile's cylindrical part on the condition of screw pile's crew part being driven into soil fully were gained, then the relation of the torque with screw pitch and out diameter of cylinder, which shows the torque decreases with the screw pitch increasing, and that the torque increases with the out diameter of cylinder increasing, which was according with the experiments of the screw pile's being driven into soils, and thus a screw pile with the best structure was chosen. Experiments of bionic surface showed that, on the condition of certain pressure on the surface, the protruding bionic surface can not reduce adhesion and resistance and that the corrugated bionic surface can reduce adhesion and resistance. An orthogonal experiment of the corrugated bionic surface was done with the factors including the width of protrusion, the space between two protrusions, the trolley's velocity and the vertical surface pressure and with the surface frictional coefficient as the experimental target, and some inclusions were drawn that the best combination of the factors was acquired and that the width of protrusion affected the surface frictional coefficient remarkably.

研制了防汛抢险螺旋桩机系统，提高了沉桩作业效率；利用ANSYS对桩体进行整体结构强度分析以及螺旋叶片的焊接分析，表明桩体结构强度足够，焊接过程中，螺旋叶片的变形小；对整个螺旋桩机系统进行试验，表明该系统性能可靠，工作稳定，作业效率高，能够满足防汛抢险沉桩作业基本需要；建立了螺旋桩桩土作用力学模型，得出螺旋桩沉桩过程中螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩以及扭矩与防汛抢险螺旋桩的螺旋导程和圆柱外径的关系曲线，表明螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩随着螺旋导程的增大而减小，随着圆柱外径的增大而增大，这与螺旋桩沉桩试验结论相符合，据此优选出最佳结构的螺旋桩；仿生曲面试验表明，尺寸较小的球冠突起型仿生曲面在一定压力作用下未能起到减粘降阻的作用，而尺寸较大的波纹型仿生曲面相对平板具有一定的减粘降阻作用；以波纹型仿生曲面突起宽度、波纹型仿生曲面两突起之间间距、台车的牵引速度以及叶片表面垂直载荷为因素，以曲面摩擦系数试验指标进行正交试验，寻求出在一定试验条件下最佳因素水平组合；波纹型仿生曲面突起宽度在本试验条件下对曲面摩擦系数影响显著，而其它几个因素对曲面摩擦系数影响均不显著；通过波纹型仿生曲面突起宽度和台车牵引速度的单因素试验，表明曲面摩擦系数随着仿生曲面突起宽度的增大而减小，而随着台车牵引速度的变化基本保持不变，和正交试验结果保持一致。

Mud is a common type or plunger-type piston, driven by the motive power of the crankshaft rotary pump, crankshaft driven through the crosshead and then the plunger in the pump cylinder piston or reciprocating motion to do.

常用的 泥浆泵是活塞式或柱塞式的﹐由动力机带动泵的曲轴回转﹐曲轴通过十字头再带动活塞或柱塞在泵缸中做往復运动。

Driven. U.S. plans mainly driven 60%--80% sales and the completion of the main cap rate, and plans to open new projects.

今年计划主要是美荔园主体封顶以及完成60％－－80％的销售率，并计划开辟新项目。

"As China and India sort of shudder in the wake of our current financial crisis, there is concern about their export-driven economies, particularly in China, and the extent that they are driven by the ability to sell products into our market," she said.

她说：由于美国目前的金融危机影响了中国和印度，人们为这种出口型经济感到担忧，特别是中国。人们还担心这些经济体的发展在多大程度上是由它们向美国市场的出口能力推动的。

First of all, the principle of the traditional throttle pedal is driven by cable-driven throttle to control engine power output, the current most advanced vehicles have been imported electronic throttle, its principle is based on servo motor control section of valve switching point of view, but the two operators who encounter the accelerator pedal stuck failure, life-saving methods should be the same, unless the electronic throttle with automatic reset power design, special or adapted vehicles is another matter.

首先，传统油门的原理是藉由脚踏板拉动钢索驱动节气门，藉以控制引擎动力输出，目前的高级车种大多已导入电子式节气门，其原理是以伺服马达控制节汽门开关角度，但两者如遭遇油门踏板卡死失效，救命的方法应该是一样的，除非电子式节气门有断电自动复位设计，特殊或改装车种则另当别论。

First of all, the principle of the traditional throttle pedal is driven by cable-driven throttle to control engine power output, the current most advanced vehicles have been imported electronic throttle, its principle is based on servo motor control section of valve switching point of view, but the two operators who encounter the accelerator pedal stuck failure, life-saving methods should be the same, unless the electronic throttle with automatic reset power design, special or adapted vehicles is another matter.

首先，傳統油門的原理是藉由腳踏板拉動鋼索驅動節氣門，藉以控制引擎動力輸出，目前的高級車種大多已導入電子式節氣門，其原理是以伺服馬達控制節汽門開關角度，但兩者如遭遇油門踏板卡死失效，救命的方法應該是一樣的，除非電子式節氣門有斷電自動復位設計，特殊或改裝車種則另當別論。

Two of our wheels are driven by rotating power system to made the cylinder rotate . The swinging rack is driven by a set of crankshaft swinging bar which is mounted on the frame and the swinging rack is supported on the frame.

在四个支撑滚轮中，其中两个传动轮由转动动力系统拖动使转筒产生转动；摆动架由一组曲柄摆杆机构来驱动，曲柄摆杆机构装在机架上，摆动架由轴承组件支撑在机架上。

The crawler and swing arm both are driven by DC servo motor directly, the complex driving devices are eliminated, swing arm drive DC servo motor is installed in the interior of driven wheel and swing arm wheel; it ensures robot has high maneuverability and strong over-obstacle capability, at the same time it overcomes the disadvantages of traditional drive and transmission system, such as a lot of elements, complex structure and low efficiency, it reduces energy consumption, saves interior space, reduces overall weight, increases the work reliability and running stability of robot and provides new design programs and new technology channels for small-sized crawler ground movable robot drive device.

机器人的履带和摆臂均由直流伺服电机直接驱动，省去了复杂的传动机构，摆臂驱动直流伺服电机则安装在从动轮和摆臂轮内部，在保证机器人具有高机动性和强越障力的同时，克服了传统驱动、传动系统零件众多、结构复杂、效率低下的缺点，降低了系统能耗，节省了内部空间，减轻了整体重量，提高了机器人的工作可靠性和行驶稳定性，为小型履带式地面移动机器人驱动装置提供了新的设计方案和新的技术途径。

When he returned, he hunted up his old friends.

他回来时找到了他的老朋友。

No, we're not drifting.

不，我们没有在漂移。